Improvement in spinning machinery



litre .maar traen.

IMPROVEMENT IN SPINNING MACHINERY.

Specilicatlon forming parl of' Letters Patent N0. @,675 dated January 20, 1852.

To @ZZ 1071/0772, it' may can/cern.'

Be it known that we, OLIVER PEARL and HENRY I. CHANDLER, of Lawrence, in the county of Essex and State of Massachusetts, have invented a new and useful Improvement in Throstle Spinning Machinery; and we do hereby declare that the same is fully described and represented in the following speciiication and accompanying drawings, letters, iigures, and references thereof.

Of the said drawings, Figure l denotes an external front elevation ol' a flier and spindle constructed on our improved plan. Fig. 2 is a vert-ical and central section of the same. Fig. 8 is an external elevation of a iiier and spindle made in the ordinary way.

In Fig. 3 the spindle, which is what is gcnerally termed a dead-spindle, is seen at A.

i It is supported on the elevating-rail B, and

plays up and down through a tubular bearing, C, iitted through the stationary or bearing rail D of the throttle-frame. The whirl E of the flier F rotates freely on the spindle, and has the flier resting upon it, and so applied to it that the two will rotate together when whirl is rotated. The iiier in this case has to be made in length` or altitude at least, and generally more than twice, that of the bobbin, which rests on the button G. In this construction of the whirl the vertical cylindrical hole made through it is only made of a diameter just suiiicient to receive the spindle, and allow it toplay up and down and the whirl to rotate in the spindle.

In our improved plan or mode of constructing the parts the whirl e, Figs. land 2, is made much larger in diameter and supported by and made to rotate on a vertical tube, 71., whose internal bore or diameter is made large enough to allow the bobbin i to play freely up and down through it. The said tube h is supported by the stationary bearing-rail el of the throstle-hame7 and it has a shoulder, ZZ, upon which the whirl rests. The bottom m of the flier rests upon the top surface of the whirl, and is also made with an oriiice through it sufficiently large to allow the bobbin to freely pass up and down through it. In our representation of it it is shown as surrounding and concentric with the upper part of the tube 7L. A small pin or stud, a, is made to project from the said bottom of the flier and enter a corresponding cavity, o, made down in the top of the whirl, the same being for the purpose of causing the flier to revolve with the whirl.

\ The spindle a, supported by suitable bearings -iiier is made only about the length of the bobbin, instead of double, or more than double, its length, as it is in the old way represented in Fig. 3.

Ordinary throstle spinniiig-iliers are usually constructed in length from one and a half to two inches more than twice that of the bobbin, and the bobbin and the button on which it rests has to travel within the same. The length of the ilier is limited on account ot' thc curving or spreading of its arms when driven at the requisitev speed for successful opera-- tions.

The average amount of yarn wound upon the ordinary throstle lling-bobbins as made at the present time is from five hundred and iifty to six hundred yards. By our improvement we are enabled to increase the length of the bobbin and, of course, increase the amount of yarn wound on it. In other words, we can use with the same length of flier a bobbin double orA nearly double-the length of that which can be employed under ordinary circumstances, or by the construction of flier and spindle, as represented in Fig. 3, consequently the amount of yarn wound on the bobbin will be greatly increased by increasing its length. The increased length wound on i the bobbin makes less changes of the shuttle necessary in the process of weaving, and consequently creates a saving of time and labor. The enlarged capacity of the bobbin enables the throstle-frame to be operated a much longer time without dofting,` or, in other words, changing the bobbins while spinning, thereby producing on the frame a greater amount of yarn per day.

Another very important advantage gained by our improvement is, that we are enabled to run the flier at a great increase of speed beyond what is safe with the ordinary throstleflier, as represented in Fig. 3. The nier-legs in our improvedmode of making the flier being much shorter than those of the kind of flier denoted in Fig. 3, there is not that da-nger that the old plan presents of their being bent or broken `by the action of the centrifugal force during the revolution of the il Consequently the lier can be run at a grea speed7 and thus produce more work in a given time.

Many of the above-enumerated advantages result from using a short nier7 and making the lower bearing of the flier open, as described. XVe, howevendo not wish it understood that the making the lower part of 'the iiier open so as-to so receive the flier constitutes our invention; butas great advantages are gained by such we have combined with such an arrangement of the drivingwhirl,and the bearing of such whirl, by which we are not only enabled to run the flier with less frietion and with a great saving of wear and tear7 but with greater steadiness of motion than is the case when the whirl is arranged at the top or nose or" the iiier. The friction of the enlarged whirl. under the new arrangement and eombination of it and its bearings is found by .practice to be not so great as that of a smaller whirl and its bearings, as the baud by which the former or large whirl is driven is not required to be so tightjbut niay be run very loosely on it. rlhus the wear oi the rubbing surfaces is very much diminished, and much of or nearly all that unsteadiness of motion or' the whirl below the nose of the flier; but

Vhat we do claim as our improvement is- The arrangement of the whirl at the base of the flier7 in combination with making theV said whirl and the bearing on which the whirl is placed and rotates with a passage through them large enough to allow the bobbinto play within the saine and up and down between the flier-legs, substantially in manner and forthe purpose as specified.

In testimony whereof we have hereto set our signatures this 30th day of October7 A. D. 1851. OLVER PEARL.

HENRY l?. CHANDLER.

Titnessesz XV. l-IARMON, GEOR. P. BRIGGs. 

